“When a float is contained within a container box that has a visible border or background, that float does not automatically force the container's bottom edge down as the float is made taller. Instead the float is ignored by the container and will hang down out of the container bottom like a flag. Those familiar only with Explorer for Windows may scratch their heads and say “That's not right!” ……” (Quotation: Big John und Holly Bergevin)

“The concept of floats is probably one of the most unintuitive concepts in CSS. Floats are often misunderstood and blamed for floating all the context around it, causing readability and usability problems. However, the reason for these problems isn’t the theory itself, but the way the theory is interpreted - by developers and browsers. ….” (Quotation: 2006-2009 Vitaly Friedman and Sven Lennartz. Theme by Smashing Magazine)